Epidemic histoplasmosis in patients with undifferentiated fever.
D000208:Acute Disease; D000328:Adult; D004196:Disease Outbreaks / Q000453:epidemiology*; D005335:Fever of Unknown Origin / Q000209:etiology*; D006660:Histoplasmosis / Q000150:complications* / Q000453:epidemiology; D006801:Humans; D008297:Male; D010177:Panama Canal Zone